Network N has acquired WarGamer.com, StrategyGamer.com, and PocketTactics.com for an undisclosed sum.
The sites were previously owned by strategey video games publisher Slitherine Group.
All three were previously operated by editor-in-chief Joe Robinson, who will remain with the website under the new ownership.
"Joe has done a great job building a loyal audience, with really strong homepage traffic and over 40,000 forum members," said Network N CEO James Binns. "The team will now work to build search and social. Network N will be able to cover more strategy and war games than ever before and unlock some mobile business too - we're particularly stoked about the rise of digital board games."
JD McNeil, CEO of The Slitherine Group, added: "We know what the Network N guys are capable of and we are confident that our three babies are in safe hands. It makes sense that in an ever-evolving market, the editorial side of our business is owned and managed by professionals. Joe Robinson has done a stunning job working on the sites so far and he will do even better now that he has free granola and nice coffee".
Network N is the media company that operates PCGamesN.